TLC5941RHBT

Overview

The TLC5941RHBT is a Texas Instruments LED display driver IC featuring 16 constant-current channels. It operates on a 3 V to 5.5 V supply with a maximum output voltage of 17 V and per-channel current up to 80 mA. The device utilizes a serial interface for data input and supports 12-bit grayscale PWM control. Key features include dot correction, error flagging, and fault detection for open or short circuits. It is housed in a 32-pin VQFN package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates 16 independent constant-current sink channels for precise LED brightness control
• Supports 12-bit grayscale pulse width modulation for high-fidelity color reproduction
• Includes internal dot correction circuitry to compensate for manufacturing variations
• Provides diagnostic capabilities including LED open/short detection and error flagging

Applications

• LED matrix displays
• Signage and advertising boards
• Backlighting systems
• General-purpose LED lighting arrays

Procurement Notes

Verify the specific suffix RHBT corresponds to the VQFN-32 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal management design accounts for power dissipation limits in dense PCB layouts. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Selection Notes

Select this component for applications requiring high channel count with individual current control. It is suitable where space constraints favor surface-mount packaging over through-hole options. Consider the 80 mA per-channel limit against total load requirements. Evaluate the need for built-in diagnostics if system reliability is critical.

Part Context

This part belongs to the TLC5941 series of LED drivers from Texas Instruments. It shares functional similarities with other members like the TLC59401 but differs in topology and channel configuration. The series is designed for scalable LED control solutions, offering a balance between performance and interface simplicity for embedded systems.

Replacement Considerations

Public confirmed substitutes include the TLC5941RHBRG4. Verify pinout and electrical characteristics match before substitution.